Improvement in grain-separators for thrashing-machines



J. W. HU'NTQON. Gmn Separator.

PafentedJan'. 31, 1871.

E1'. PETERS. PHOTO LI IHDG aurea gaat @anni @wird JAI/Ins' W.IIiINfroofN, or sr. L'oUIs, MISSOURI.

Letters Patent No. 111,347, dated January 31, 18714 i GMPRQVEMENT INGRAIN-SEPARATORS FOR THRASHlNG- MACHINES.

The Schedule referred t in these Letters Patent and making part of thesame.

To all whom it may concern; l

Be it'known that `LJAMES W. HUNTooN, of St. Lous',in the county of St.Louis and State of Missouri, have invented certain new and usefulImprove- .ments in Thrashing-Machine separators; andv I l do herebydeclare that the following is'a full, clear, and

inthe' rear of the machine and separate from it.

In order to enable others skilled in the `art` to whichmyiuventionappertains to make and use .the

same,I will now proceed to `describe its construction and operation,referring to the annexed drawing, which formsa part of thisspeciiication, au d in `Which` Figure 1 is a side elevation, and A IFigure 2 a plan View of -a thrashing-machine sepal'ator withmyfimprovements attached thereto.`

In the drawing I have only deemed it necessary to represent sc ,m'uch ofa'thrashing-machine separator as is Arequired toshow my improvements.

A represents the screen-sl1oewhich is moved within the frame B, back andforth, lby the rod a from the crank-shaft G. e

Above the shoe A, running' across Vthe same, is a series of shafts, 4D1), which have their bearings in the frame B, and are providedwith armsb b. I These arms point toward the rear of the machine, as shown.

The shafts D D are on one side provided with cranks c e, connected bycouplings d d, and operated wiseabove the screens between the arms bb,above the shafts D D.

These bars are provided with teeth slanting forward in such a'mannerthat, as they are moved back and` forth with the shoe, they wiliin theirforward movement catch the thrashed grain immediately as it leaves thecylinder or thrashing portion of the machine, and move it backward,while they partially separate the'` grain, causing it to fall into thescreen. `rhus the` stra-w is moved vover the arms'b l), therapid-.motion of'- which thoroughly separates all, remaining 'grain fromit. y

It is a well-known fact that the separation of the grain from the strawafter being thrashed is the most diiiicult, uncertain, andimperfectly-aecomplished part of the operation with other machines,audin their construction requiring much the. greater bulkv andl weight ofmacliiuery, both of which are'objectionable, besides the great expense.

'Iheserobjectionsv are entirely overcomeby my im' provemehts, vas theyare in close proximity to' the thrashihghcylinder, and by theirconstruction materiallylessen the necessary space, weight, and expense,

and make the vdraft much easier, being less maf cl (l, rods f u ,andc'rank-shaft-C, as and for the ypurpose set forth.

In testimony that I claim the' foregoing I have here unto,v set my hand'this 25th-day of November,

'JAMES W. HUNTOON'.

Witnesses:

JAMES Pn'rrnnson, RUDOLPH ANDERSON.

